TAS-A074
TAS_a074_shortCircuit5VOffBoard
What does TAS-A074 mean?
Tesla alert code in the Thermal Architecture System (TAS) module. Off board 5V switched supply is measured to be approximately 0V. Rear axle has been measured to be lower than any reasonable height. Rear axle has been measured to be lower than any reasonable height for an extended period. Rear axle has been measured to be not be lower than any reasonable height for an extended period. Rear right air valve has reached its duty cycle (on time) limit. Rear right air valve has dropped below its duty cycle (on time) limit, plus some hysteresis. Air suspension leveling will be temporarily disabled until rear right air valve duty cycle drops. Signal line from rear right PWM height sensor shorted to ground.
Original Description
Off board 5V switched supply is measured to be approximately 0V. Rear axle has been measured to be lower than any reasonable height. Rear axle has been measured to be lower than any reasonable height for an extended period. Rear axle has been measured to be not be lower than any reasonable height for an extended period. Rear right air valve has reached its duty cycle (on time) limit. Rear right air valve has dropped below its duty cycle (on time) limit, plus some hysteresis. Air suspension leveling will be temporarily disabled until rear right air valve duty cycle drops. Signal line from rear right PWM height sensor shorted to ground.
Severity Notes
TAS-A074 is an Alert in the Thermal Architecture System system. It is generally safe to continue driving, but have it checked at your next scheduled service.